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5 steps · MA
Master Plumber
1 year as a journeyman + the Master exam — now you can pull permits and run jobs.
Pay range
MA masters working for a shop: $80K–$140K/yr. Independent masters with their own service truck: $100K–$200K+ depending on hours and pricing.
What this job is
The honest version
After at least 1 year as a licensed journeyman in MA, you can sit for the Master Plumber exam — a tougher written exam covering the full MA Plumbing Code (248 CMR), business law, blueprint reading, pipe sizing, and supervisory rules. Pass it, and you're a Master. This is the rung where the trade really opens up: as a master you can pull plumbing permits in your own name, supervise apprentices and journeymen, and operate as the licensed contractor of record on jobs. Most masters either run a crew at a larger shop, work as a senior service plumber, or start moonlighting their own side jobs while building toward their own business.
Is this you?
You'll fit if…
- You know the MA Plumbing Code cold and you keep up with code updates
- You can mentor apprentices and journeymen without losing patience
- You think about job profitability, not just job completion
- You can talk to inspectors, homeowners, and GCs as equals
What you'll do
Core skills
- Pulling permits and managing inspections in MA towns and cities
- Estimating jobs profitably (labor + material + overhead + profit)
- Reading commercial and residential blueprints, including ISO drawings
- Supervising 2–6 journeymen and apprentices on multi-day jobs
- Customer-facing sales — converting a service call into a multi-thousand-dollar repipe
- Code interpretation when an inspector and a homeowner disagree
What you'll need
Required certifications
Stand out
Things that give you a leg up
- A truck stocked for service AND new construction (different tool kits)
- A book of GC and property manager contacts who call you first
- QuickBooks or Jobber proficiency for invoicing and tracking jobs
- Bilingual — multilingual masters dominate MA's residential service market
Take a step
Learn more
- Schedule your MA Master Plumber exam the day you've got 1 year of journeyman time logged
- Get a quote for general liability insurance (~$500–$2,000/yr depending on volume)
- Start a side service truck (with your sponsoring shop's blessing) to test independent work
- Schedule a free MA Small Business Development Center consultation about going independent
Heads up
Real talk before you commit
- Pulling permits in your name puts your license on the line — you're responsible for every inspection.
- Most masters underestimate overhead. Truck, fuel, insurance, software, phone, and unbilled hours add up fast.
- A bad apprentice on your job is YOUR liability now. Hire and supervise carefully.
- Don't quit your shop job until you've stress-tested your independent income for 3+ months.